Roll-holder.



ROLLHOLDER.

APPLICATION FILED JUNE 29, 1914.

'INVENTOR.

% )mcm, n fiATTORA/EYS.

LUCIUS N. SABIN, OF SAN FRANCISCO, CALIFORNIA.

ROLL-HOLDER.

Application filed June 29, 1914.

v 1 b all whom it may concern An object of the invention is to providean improved. form of spindle for carrying the roll of paper.

The invention. possesses other advantageous features, some of which,with the foregoing, will be set forth at length in the followingdescription, where I shall out line in full that form of the inventionwhich I have selected for illustration in the drawings accompanying andforming part of the present specification. In said drawings 1 have shownonly one specific form of my generic invention, but it is to beunderstood that I do not limit myself to such form be- I cause myinvention may be embodied in a multiplicity of forms, each being aspecies of my said invention. It is also to be understood that by theclaims succeeding the description of my invention, I desire to cover theinvention in whatever form it may be embodied.

In the drawings I have shown my invention as embodied in an autographicregister, since that is one form of apparatus in which the invention maybe advantageously employed, but it is to be understood that theinvention may be embodied in other machines in which superposed sheetsof paper are to be coincidently moved. This invention is notparticularly concerned with what is written, printed or impressed on thepaper or how such writing, printing or impressing is accomplished, butrelates more particularly to the means of supporting the paper rolls.Referring to said drawings:

Figure 1 is a plan or top view of an autographic register embodying myinvention, a part thereof being shown in section to illustrate theconstruction.

Fig. 2 is a longitudinal section of the hub on which the rolls aremounted.

I have chosen to illustrate my invention as embodied in an autographicregister, that being one of the many forms of devices in Specificationof Letters Patent.

Patented liliay 8, 1lil'7.

Serial No. 848,052.

which it may be embodied, and I shall de scribe it as illustrated, butthe invention is not to be considered as limited to such embodiment.

The register consists of a suitable frame 2, a portion of which formsthe platen 3, over which the sheets are drawn. At one side of the frameis a bracket 4, on which the paper rolls, 5, 6 and 7, and the carbonrolls 8 and 9, are mounted, the rolls being so arranged that the paperand carbon is properly fed over the platen 3.

The paper rolls are mounted on. spindles or rodsl-l, which are securedat one end only to the bracket 4, so that the rolls may be readilyplaced on or removed from the spindles. The rolls are formed with avhollow core of greater diameter than the spindles, and engaging in theopposite ends of the core are hubs or plugs 15 16, through which thespindle passes and which are journaled on the spindle. The body portion17 of the hub is preferably formed conical so that it may be readilyinserted into the roll, and the conical portion is of such diameter thatwhen pressed into the roll it fits tightly thereto, so that the hub androll rotate together. The hub is also provided with a flange 18 whichbears against the end of the roll.

Means are provided for varying the turning or unrolling resistance ofthe roll, so that all of the rolls may be adjusted to present the sameresistance, thereby insuring a coincident and equal feed of the variousstrips of paper. When a roll is of large diameter the ef ective leverarm of the withdrawn sheet is longer than when the roll is small, sothat the resistance offered to turning by pulling on the sheets is'difierent and on account of irregularities in construction, theresistance to turning varies, due mostly to different frictionalresistances. I have provided. means whereby the resistances to turningof the rolls may be readily adjusted so that the sheets are regularlyfed.

' Secured to each hub is an inner ball race member 21 with which areassociated the bearing balls 22 and the relatively rotatable outer ballrace member 23. The outer race member 23 projects beyond the outer faceof the hub, and on hub 15, the outer race contacts with the bracket 4,and on hub 16, the outer race contacts with a Washer or plate 24:. Byvarying the pressure on the outer races the turning resistance of theroll is varied, and means are provided for vary ing this pressure.Engaging the free end of the spindle is a nut 25, preferably a wing nut,and between this nut and the outer race 28 is arranged a resilientelement, such as a helical spring or a soft rubber ring or cylinder 26.A washer 27 is preferably arranged between the nut and the resilientelement 20, so that rotation of the .nut will not twist the resilientelement. By adjusting the position of the various nuts the tension onthe various rolls may be adjusted so that the pull on each of the sheetsof paper is the same.

I claim:

1. In a holder for a roll of paper, a spindle, hubs rotatably mounted onsaid splndle and adapted to hold a roll of paper, a nut on said spindle,a resilient element arranged between said nut and the adjacent hub, aball race engaging said hub, a ball race engaging engaging saidresilient element and being held by said first ball race againstlongitudinal movement outward and a plurality of balls between saidraces.

In testimony whereof, I have hereunto set my hand at San Francisco,California, this 23rd day of June 1914.

LUGIUS N. SABIN.

In presence of- H. G. PROST, P. S. PIDWELL.

Copies of this patent may be obtained tor five cents each, by addressingthe "Commissioner of Patents, Washington, D. G.

